Christopher Brito of CBS News –
Reports of polar bears in the Arctic eating each other are coming in at a higher rate, according to a scientist with the Russian Academy of Sciences, Russia’s top scientific body. Among the factors responsible for the change include increased human activity and diminished hunting grounds, he said.
While cannibalism among polar bears has been understood to happen on rare occasions in the past, Ilya Mordvintsev, a senior researcher with the Severtsov Institute of Ecology and Evolution, said there has been an “increase in the number of cases,” according to Russian news agency Interfax. He made the remarks at a conference in St. Petersburg.
Mordvintsev believes there’s two possible causes for the reported rise. One is insufficient nutrition, which might cause large males to attack females and their cubs. The other is a rise in people in the Arctic…